ASTROSAT CZTI

Data Quality Report

Orbit 09547

Creation date: 2024-06-27T15:47:34.240641
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G07_049T02_9000001354_09547cztM0_level2.evt modeM0/AS1G07_049T02_9000001354_09547cztM0_level2_quad_clean.evt
Size (bytes)474,171,840133,165,440
Size452.2 MB 127.0 MB
Events in quadrant A3,369,148890,520
Events in quadrant B3,492,334894,840
Events in quadrant C3,258,972884,342
Events in quadrant D3,743,274855,111

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01502
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149323
B0152162
C0148662
D0162032

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7308781.067323%
B73081061.450465%
C7308801.094691%
D73081842.517789%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 8893 7310 0 0 0.00% 0.00%
B 8893 7310 2 2 0.02% 0.03%
C 8893 7310 2 2 0.02% 0.03%
D 8893 7310 75 75 0.84% 1.03%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 1 162 58536 331.94 849 830 173.8
A 1 178 15142 82.33 849 830 173.8
A 1 161 14482 78.53 849 830 173.8
B 4 80 55129 335.8 854 832 161.7
B 0 214 47968 291.51 854 832 161.7
B 0 187 23271 138.77 854 832 161.7
C 14 234 6922 31.92 832 834 190.8
C 13 61 6245 28.37 832 834 190.8
C 14 67 2963 11.16 832 834 190.8
D 13 122 221353 1095.91 815 794 201.3
D 1 52 204468 1012.01 815 794 201.3
D 12 227 83039 408.66 815 794 201.3

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter